DE3636478A1 - METHOD AND ARRANGEMENT FOR ROLLING CONTINUOUS PROFILES - Google Patents
METHOD AND ARRANGEMENT FOR ROLLING CONTINUOUS PROFILESInfo
- Publication number
- DE3636478A1 DE3636478A1 DE19863636478 DE3636478A DE3636478A1 DE 3636478 A1 DE3636478 A1 DE 3636478A1 DE 19863636478 DE19863636478 DE 19863636478 DE 3636478 A DE3636478 A DE 3636478A DE 3636478 A1 DE3636478 A1 DE 3636478A1
- Authority
- DE
- Germany
- Prior art keywords
- web
- universal
- stand
- stands
- profiles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 230000002441 reversible effect Effects 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 5
- 238000007906 compression Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000283153 Cetacea Species 0.000 description 1
- 101150006573 PAN1 gene Proteins 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/14—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel in a non-continuous process, i.e. at least one reversing stand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B2013/003—Inactive rolling stands
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Walzen von Form stählen aus zweckmäßig einem Durchlaufofen entnommenen stranggegossenen Profilen mittels zu einer Kompaktgruppe zusammengefaßter, im Reversierbetrieb arbeitender Univer salgerüste, deren einem ein Flanschen-Stauchgerüst vorge ordnet ist, sowie eine Umkehr-Tandemgruppe zum Walzen der Formstähle.The invention relates to a method for rolling mold steels taken from a continuous furnace extruded profiles by means of a compact group summarized university working in reverse operation salt skeletons, one of which featured a flange-compression frame is arranged, as well as a reverse tandem group for rolling the Molding steels.
Üblicherweise wird bspw. entsprechend der Druckschrift W 2/3115 zum Walzen von Formstahl eine Walzstraße vorge sehen, die eingangsseitig ein im Reversierbetrieb betrie benes Vorgerüst, anschließend eine Umkehr-Tandemgruppe sowie ausgangsseitig eine Fertiggruppe aufweist. Nach der DE-OS 36 27 729 kann auf eine gesonderte Fertiggruppe verzichtet werden, wenn das zweite bzw. letzte Universal gerüst der Umkehr-Tandemgruppe als Fertiggerüst ausgebil det und betrieben wird. Auch auf das Vorgerüst mit einer ggfs. hohen Anzahl von Vorstichen kann verzichtet werden, wenn nicht Blöcke herabgewalzt werden, sondern strangge gossene Profile zur Verfügung stehen. Bei der Wahl der Stranggußkokille versucht man hierbei den Querschnitt des Stranggußprofiles so zu beeinflussen, daß zum Walzen üblicher Endprofile bereits erste Vorkehrungen getroffen sind. Be währt hat es sich hierbei, vermittels der Stranggußkokille ein Vorprofil zu erstellen, das beidendig eines Steges bereits Verstärkungen aufweist, und daß als "Hundekno chen"- bzw. "dog-bone" -Profil bezeichnet wird.Usually, for example, according to the publication W 2/3115 a rolling mill for rolling shaped steel see the one on the input side operated in reverse operation next roughing stand, then a reversing tandem group and has a finished group on the output side. To DE-OS 36 27 729 can on a separate group be waived if the second or last universal scaffolding of the reverse tandem group trained as a finishing stand det and operated. Also on the roughing stand with one if necessary, a high number of preliminary stitches can be omitted, if not blocks are rolled down, but extruded cast profiles are available. When choosing the Continuous casting mold is tried here the cross section of the To influence the continuous casting profile so that it is more common for rolling Final profiles have already been taken. Be It has proven useful here by means of the continuous casting mold to create a preliminary profile that is at both ends of a web already has reinforcements, and that as "Hundekno chen "or" dog-bone "profile.
Es hat sich hierbei allerdings herausgestellt, daß die Abmessungen dieses Vorprofiles bereits weitgehend die leicht erzielbaren Endprofile bestimmen, die, bspw. im Falle von I-Trägerprofilen vermittels von Universalge rüsten, erstellt werden, während im Falle bspw. von U-Pro filen bereits eine Duo-Walzung zum Erfolg führen kann. Da jedoch ein Wechsel des Strangguß-Profiles umständliche Gerüstarbeiten und damit unvorteilhafte Stillstandzeiten be dingt, ist man bestrebt, nach Möglichkeit mit einem vorge gebenen Eingangsprofil auszukommen, wobei zwar ein mittlerer Querschnittsbereich der Ausgangsprofile sich problemlos er reichen läßt, diesen überschreitende stärkere oder schwächere Profile jedoch einen hohen zusätzlichen Aufwand bedingen.It has been found, however, that the Dimensions of this pre-profile largely the determine easily obtainable end profiles, for example in Trap of I-beam profiles by means of Universalge prepare, be created, while in the case of U-Pro filen rolling can already lead to success. However, since changing the continuous casting profile is cumbersome Scaffolding work and therefore disadvantageous downtimes things, one strives, if possible, with a given input profile, although a medium Cross-sectional area of the initial profiles is easy enough to go beyond that, stronger or weaker However, profiles require a lot of additional effort.
Die Erfindung geht von der Aufgabe aus, Verfahren und Mittel zu deren Durchführung zu schaffen, welche es gestatten, mit relativ geringem Aufwande aus einem vorgegebenen Eingangs profil auch entsprechend stärkere oder schwächere Ausgangs profile zu erstellen.The invention is based on the task, methods and means to implement them, which make it possible to use relatively little effort from a given input profile also correspondingly stronger or weaker starting create profiles.
Gelöst wird diese Aufgabe mit den in den Ansprüchen 1 und 2 benannten Merkmalen. Hierdurch läßt sich der Steg des zuge führten Profiles jeweils nach Bedarf entweder zusätzlich stauchen, oder aber er läßt sich, ggfs. unter Einbeziehung relativ leicht herstellbarer Verstärkungen des Strangguß profiles, stärker auswalzen, so daß die Palette der aus einem bzw. einem nur leicht variierten Ausgangs-Stranggußprofil hergestellten Träger sich mit geringem Aufwande wesentlich erweitern läßt. This object is achieved with those in claims 1 and 2 named features. This allows the web of the train led profiles either additionally as required upsetting, or he can, if necessary, with inclusion relatively easy to manufacture reinforcements of the continuous casting profiles, roll out more so that the palette of one or an only slightly varied initial casting profile manufactured carrier itself with little effort lets expand.
Zweckmäßige und vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.Appropriate and advantageous developments of the invention can be found in the subclaims.
Im einzelnen ist die Erfindung anhand der folgenden Be schreibung eines Ausführungsbeispieles in Verbindung mit einer dieses darstellenden Zeichnung erläutert.In particular, the invention is based on the following Be writing an embodiment in connection with one of these illustrative drawings explained.
In der Zeichnung sind schematisch die Herstellung eines Stranggußprofiles, dessen Temperierung sowie die zum Wal zen benutzte Kompaktgruppe dargestellt.In the drawing, the manufacture of a Continuous casting profile, its temperature control and that of the whale zen used compact group shown.
Im einzelnen wird der Stahl aus einer Pfanne 1 in einen Verteiler 2 gegeben, welcher die Kokille 3 speist. Der Strang wird entlang einer Stützvorrichtung 4 durch Kalt strangtreiber 5 vorgeschoben und beim Passieren von Richt treibern 6 gerichtet. Die zum Aufteilen des Stranges be nutzten Scheren- oder Brennschneidmaschinen sind in der Zeichnung zur Vereinfachung nicht dargestellt. Entsprechend dem jeweiligen Produktionsprogramm des Walzwerkes können die stranggegossenen Profile heiß oder kalt eingesetzt wer den. Beim Heißeinsatz werden sie direkt dem Durchlaufofen 8 zugeführt, welcher die optimale Walztemperatur sichert. Im Falle des Kalteinsatzes werden die Profile auf einen nicht dargestellten Lagerrost abgeschoben, von dem aus sie, bspw. vermittels eines Kranes, in einem Kaltlager zwischen gelagert werden können. Zum Zwecke des Walzens werden sie dem Durchlaufofen 8 zugeführt, der mit einem Hubbalkenbett und/oder einem Ofenrollgang ausgestattet sein kann, und werden nach Erreichung ihrer zum Walzen optimalen Temperatur auf den Rollgang 7 in Richtung auf das Kompaktwalzwerk aus geschoben. Das Kompaktwalzwerk besteht aus einem Vertikal- Stauchgerüst 9, einem nachgeordneten, als Arbeitsgerüst ver wendeten Universalgerüst 10, einem dann folgenden (horizontalen) Flanschen-Stauchgerüst 11, dem ein weiteres Universalgerüst 12 folgt, das zweckmäßig als Fertiggerüst ausgebildet und betrieben wird.Specifically, the steel is fed from a pan 1 into a distributor 2 , which feeds the mold 3 . The strand is advanced along a support device 4 by cold strand drivers 5 and directed 6 when passing directional drivers. The scissors or flame cutting machines used to split the strand are not shown in the drawing for the sake of simplicity. Depending on the production program of the rolling mill, the continuously cast profiles can be used hot or cold. When hot, they are fed directly to the continuous furnace 8 , which ensures the optimum rolling temperature. In the case of cold use, the profiles are pushed onto a storage rack, not shown, from which they can be temporarily stored in a cold store, for example by means of a crane. For the purpose of rolling, they are fed to the continuous furnace 8 , which can be equipped with a walking beam bed and / or an oven roller table, and after reaching their optimum temperature for rolling, are pushed onto the roller table 7 in the direction of the compact rolling mill. The compact rolling mill consists of a vertical upsetting stand 9 , a subordinate, used as working stand ver universal stand 10 , then a (horizontal) flange-upsetting stand 11 , which is followed by another universal stand 12 , which is expediently designed and operated as a finishing stand.
Im Betriebe werden die stranggegossenen Profile entweder im direkten Einsatz oder vom Kaltlager den Gerüsten zuge führt. Beim Walzen üblicher, dem Stranggußprofil angepaßter Profile werden die Stiche der Gerüste wie im Reversierbe trieb üblich eingestellt. Hierbei können entsprechend den zu walzenden Profilen Gerüste 10 und 12 als Universalge rüste oder als Duogerüste betrieben werden. Bewährt hat es sich hierbei, das Gerüst 10 als Arbeitsgerüst mit voller üblicher Reduktion einzusetzen, während das Universalge rüst 12 als Fertiggerüst betrieben wird, daß heißt mit ge genüber dem Universalgerüst 10 verringerter Reduktion, so daß bei entsprechend langer Standzeit sich die gewünschten guten Oberflächen ergeben.In operation, the continuously cast profiles are either used directly or supplied to the scaffolding from the cold store. When rolling conventional, the extruded profile adapted profiles, the stitches of the stands are set as usual in Reversierbe operation. Here, scaffolding 10 and 12 can be operated as Universalge scaffolding or as dual scaffolding according to the profiles to be rolled. It has proven useful here to use the scaffold 10 as a work scaffold with full usual reduction, while the Universalge scaffold 12 is operated as a finishing scaffold, that is to say with reduced ge compared to the universal scaffold 10 , so that the desired good surfaces result with a correspondingly long service life .
Gilt es, gegenüber dem Ausgangsprofil die gebildeten Stege kürzer auszuführen, so wird zusätzlich das Stauchgerüst 9 benutzt, das gegen die Flansche des Eingangsprofiles ange stellt eine Stauchung von dessen Steg bewirkt. Die Benutzung des Stauchgerüstes 9 kann parallel zu weiteren Stichen in den folgenden Gerüsten der Kompakt-Gerüstgruppe erfolgen; es hat sich aber bewährt, den Stauchvorgang, ggfs. in mehreren Stichen, vor der Reduktion in der eigentlichen Kompakt-Gerüst gruppe durchzuführen oder nur mit den letzten Stichen zu über lappen.If it is necessary to make the webs formed shorter compared to the initial profile, the upsetting frame 9 is also used, which provides a compression of the webs against the flanges of the input profile. The upsetting frame 9 can be used in parallel with other stitches in the following frames of the compact frame group; However, it has proven useful to carry out the upsetting process, if necessary in several passes, before the reduction in the actual compact scaffolding group or to overlap only with the last pass.
Umgekehrt ist es möglich, um größere Steghöhen zu erzielen, das Flanschen-Stauchgerüst 11 einzusetzen. Hierbei werden nicht die gegen die Flanken der Flansche anzustellenden Ka liberteile benutzt, sondern vielmehr im Bereiche des Steges wirksame Teile des Kalibers. Insbesondere wenn, was durch relativ einfache Änderungen der Stranggieß-Kokille 3 mög lich ist, mit mittig verstärktem Steg stranggegossen wird, kann auf diese Weise eine relativ erhebliche Streckung des Steges bewirkt werden. Auch hier kann es sich als zweckmäßig erweisen, die Reduktion des Steges mittels des Flanschen- Stauchgerüstes 11 vor der weiteren Reduktionsarbeit in den übrigen Gerüsten zweckmäßig mehrstichig zu bewirken oder aber die übrigen Gerüste, sozusagen überlappend, nur bei dem oder den letzten Stichen miteinzusetzen.Conversely, in order to achieve larger web heights, it is possible to use the flange compression frame 11 . Here not the caliber parts to be used against the flanks of the flanges are used, but rather effective parts of the caliber in the area of the web. In particular, if what is possible by relatively simple changes to the continuous casting mold 3 is continuously cast with a centrally reinforced web, a relatively considerable extension of the web can be brought about in this way. Here, too, it can prove to be expedient to effect the reduction of the web by means of the flange upsetting frame 11 prior to the further reduction work in the other stands, or to use the other stands, overlapping, so to speak, only with the last stitch or stitches.
In alle diesen Fällen wird das mit bspw. bis zu 15 Vorform stichen belastete übliche Vorgerüst eingespart, und es wird mit einem bereits vorgeformten und dem Erzeugnis angepaßten, stranggegossenen Profil im Eingang der Kompakt-Gerüstgruppe gearbeitet, ohne daß bei der vorteilhaften Verwendung im wesentlichen eines stranggegossenen Profiles die Palette der aus diesen zu erstellenden Fertigprofile unvorteilhaft eingeschränkt wäre.In all these cases, this will be with up to 15 preforms, for example stitches stressed usual roughing stand, and it will with an already preformed and adapted to the product, extruded profile in the entrance of the compact scaffolding group worked without the advantageous use in essential of a continuously cast profile the palette of the finished profiles to be created from these disadvantageous would be restricted.
Claims (10)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3636478A DE3636478C2 (en) | 1986-10-27 | 1986-10-27 | Process for rolling finished profiles from a preliminary profile |
AT87114862T ATE87514T1 (en) | 1986-10-27 | 1987-10-12 | METHOD AND ARRANGEMENT FOR ROLLING CONTINUOUSLY CAST PROFILES. |
EP87114862A EP0265757B1 (en) | 1986-10-27 | 1987-10-12 | Method and arrangement for rolling continuously cast profiles |
DE8787114862T DE3785138D1 (en) | 1986-10-27 | 1987-10-12 | METHOD AND ARRANGEMENT FOR ROLLING CONTINUOUS PROFILES. |
ES198787114862T ES2039393T3 (en) | 1986-10-27 | 1987-10-12 | PROCEDURE AND ARRANGEMENT FOR ROLLING CONTINUOUS CAST PROFILES. |
KR1019870011789A KR960012860B1 (en) | 1986-10-27 | 1987-10-23 | Method for rolling continuously cast profiles |
CN87107839A CN1016762B (en) | 1986-10-27 | 1987-10-27 | Method and device for rolling continuous casting sections |
JP62269516A JP2529704B2 (en) | 1986-10-27 | 1987-10-27 | Reversible tandem roll stands for rolling continuously cast profiles |
US07/114,344 US4860426A (en) | 1986-10-27 | 1987-10-27 | System for rolling continuously cast profiles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3636478A DE3636478C2 (en) | 1986-10-27 | 1986-10-27 | Process for rolling finished profiles from a preliminary profile |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3636478A1 true DE3636478A1 (en) | 1988-04-28 |
DE3636478C2 DE3636478C2 (en) | 1996-10-31 |
Family
ID=6312539
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3636478A Expired - Lifetime DE3636478C2 (en) | 1986-10-27 | 1986-10-27 | Process for rolling finished profiles from a preliminary profile |
DE8787114862T Expired - Lifetime DE3785138D1 (en) | 1986-10-27 | 1987-10-12 | METHOD AND ARRANGEMENT FOR ROLLING CONTINUOUS PROFILES. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787114862T Expired - Lifetime DE3785138D1 (en) | 1986-10-27 | 1987-10-12 | METHOD AND ARRANGEMENT FOR ROLLING CONTINUOUS PROFILES. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4860426A (en) |
EP (1) | EP0265757B1 (en) |
JP (1) | JP2529704B2 (en) |
KR (1) | KR960012860B1 (en) |
CN (1) | CN1016762B (en) |
AT (1) | ATE87514T1 (en) |
DE (2) | DE3636478C2 (en) |
ES (1) | ES2039393T3 (en) |
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US5664452A (en) * | 1909-11-04 | 1997-09-09 | Sms Schloemann-Siemag Aktiengesellschaft | Method of rolling finished sections from a preliminary section in a reversing rolling stand arrangement |
DE4337555A1 (en) * | 1993-11-04 | 1995-05-11 | Schloemann Siemag Ag | Method for rolling finished profiles from a preliminary profile by means of a roll stand arrangement working in reversing operation |
US5082047A (en) * | 1989-07-31 | 1992-01-21 | Bricmanage, Inc. | Method of continuously casting and rolling metallic strip |
US5018666A (en) * | 1989-12-01 | 1991-05-28 | Cf&I Steel Corporation | Unitary one quarter mile long railroad rail free of weld seams |
DE4210771C2 (en) * | 1992-04-01 | 1994-07-21 | Preussag Stahl Ag | Method and device for producing a profile |
DE4415762A1 (en) * | 1994-04-29 | 1995-11-02 | Mannesmann Ag | Method and device for rolling beams from pre-profiles |
DE19512931A1 (en) * | 1995-03-30 | 1996-10-02 | Mannesmann Ag | Universal stand group and method for rolling continuously cast pre-profiles |
DE19729991A1 (en) * | 1997-07-12 | 1999-01-14 | Schloemann Siemag Ag | Process for casting and rolling and a rolling stand arrangement for rolling finished profiles (sheet piling profiles) from a preliminary profile close to the final dimension coming from a continuous casting device |
DE19714216A1 (en) * | 1997-04-07 | 1998-10-08 | Schloemann Siemag Ag | Rolling mill for rolling flat steel |
DE19747656A1 (en) * | 1997-10-29 | 1999-05-12 | Schloemann Siemag Ag | Rolling system for rolling all types of finished profiles |
US6112409A (en) * | 1997-11-14 | 2000-09-05 | Cosma International Inc. | Roll forming utilizing splitting technology |
JP3905666B2 (en) * | 1999-04-28 | 2007-04-18 | 大阪製鐵株式会社 | Inlet roller guide device |
CN100337956C (en) * | 2005-02-02 | 2007-09-19 | 湖南省醴陵市楚华陶瓷实业有限公司 | Overglaze capable of automatically forming vertical cob-webbing, fish scale webbing or lateral cob-webbing and is use |
CN101745534B (en) * | 2008-12-15 | 2012-09-26 | 鞍钢股份有限公司 | Method for conventional rolling in hot rolling short process mode |
CN103553557B (en) * | 2013-11-05 | 2015-09-09 | 北京科技大学 | The continuous casting calendering technology method of blast furnace slag production cast stone and equipment thereof |
KR102271507B1 (en) * | 2021-02-16 | 2021-06-30 | 지대헌 | Apparatus for transferring seat for recreational vehicle |
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JPS503072A (en) * | 1973-05-04 | 1975-01-13 | ||
JPS5192771A (en) * | 1975-02-12 | 1976-08-14 | Koyaitano yunibaasaruatsuenho | |
JPS5161459A (en) * | 1974-11-26 | 1976-05-28 | Nippon Steel Corp | Sokeikohenno renzokuseizohoho |
JPS52117861A (en) * | 1976-03-31 | 1977-10-03 | Nippon Steel Corp | Method of rolling hhshaped metal material |
JPS54123558A (en) * | 1978-03-18 | 1979-09-25 | Kawasaki Steel Co | Width widening and crude rolling method of h shaped steel material by hole forming mold |
SU966976A1 (en) * | 1979-12-28 | 1984-02-23 | Западно-Сибирский Металлургический Завод Им.50-Летия Великого Октября | Method for continuously rolling i-sections |
JPS6188901A (en) * | 1984-10-09 | 1986-05-07 | Nippon Kokan Kk <Nkk> | Manufacture of h-beam |
-
1986
- 1986-10-27 DE DE3636478A patent/DE3636478C2/en not_active Expired - Lifetime
-
1987
- 1987-10-12 ES ES198787114862T patent/ES2039393T3/en not_active Expired - Lifetime
- 1987-10-12 EP EP87114862A patent/EP0265757B1/en not_active Expired - Lifetime
- 1987-10-12 DE DE8787114862T patent/DE3785138D1/en not_active Expired - Lifetime
- 1987-10-12 AT AT87114862T patent/ATE87514T1/en not_active IP Right Cessation
- 1987-10-23 KR KR1019870011789A patent/KR960012860B1/en not_active IP Right Cessation
- 1987-10-27 CN CN87107839A patent/CN1016762B/en not_active Expired
- 1987-10-27 JP JP62269516A patent/JP2529704B2/en not_active Expired - Lifetime
- 1987-10-27 US US07/114,344 patent/US4860426A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2714985A1 (en) * | 1977-04-04 | 1978-10-05 | Huels Chemische Werke Ag | METHOD FOR PURIFYING TEREPHTHALIC ACID |
DE2844438A1 (en) * | 1978-10-12 | 1980-04-24 | Schloemann Siemag Ag | ROLLING MILL FOR ROLLING HEAVY CARRIER PROFILES OR RAILS |
DE2844433A1 (en) * | 1978-10-12 | 1980-04-30 | Schloemann Siemag Ag | ROLLING MILL FOR ROLLING HEAVY CARRIER PROFILES AND RAILS |
DE3419501A1 (en) * | 1984-05-25 | 1985-11-28 | Mannesmann AG, 4000 Düsseldorf | CALIBRATION FOR A REVERSIBLE FORWARD AND FOLLOWING CONTINUOUS FINISHED ROAD I-AND U-CARRIERS |
DE3627729A1 (en) * | 1986-08-16 | 1988-02-25 | Schloemann Siemag Ag | FORM STEEL ROLLING MILL |
Non-Patent Citations (1)
Title |
---|
Firmendruckschrift d. Fa. SMS W2/3115 * |
Also Published As
Publication number | Publication date |
---|---|
JPS63115601A (en) | 1988-05-20 |
EP0265757A3 (en) | 1988-08-10 |
ATE87514T1 (en) | 1993-04-15 |
DE3785138D1 (en) | 1993-05-06 |
CN1016762B (en) | 1992-05-27 |
EP0265757B1 (en) | 1993-03-31 |
CN87107839A (en) | 1988-06-22 |
DE3636478C2 (en) | 1996-10-31 |
KR960012860B1 (en) | 1996-09-25 |
JP2529704B2 (en) | 1996-09-04 |
EP0265757A2 (en) | 1988-05-04 |
ES2039393T3 (en) | 1993-10-01 |
US4860426A (en) | 1989-08-29 |
KR880004875A (en) | 1988-06-27 |
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D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8330 | Complete renunciation |